Memset
Jump to navigation
Jump to search
memset( destaddr, val, len )
- Writes a byte value to every address in a region of memory.
- destaddr
-
- The address of the first memory location to write.
- val
-
- The byte value to write.
- len
-
- The length of the region of memory to write, as a number of bytes.
The memset()
function is a fast way to fill a region of memory with one byte value.
Examples
-- clear all user data, 0x4300-0x5dff
memset(0x4300, 0, 0x1b00)
-- fill the screen with white
-- (equivalent to rectfill(0,0,128,128,7))
memset(0x6000, 0x77, 0x2000)